Postharvest fungicide dips to control fruit rot of ‘Monthong’ durian (Durio zibethinus)

Piasai, Rawat; Chalmers, Peter N.; Piasai, Onuma; Khewkhom, Netnapis

doi:10.1007/s10658-021-02246-3

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…[ 81 ]. Cases of fruit rot in lychee ( Litchi chinensis Sonn) [ 82 ] and durian ( Durio zibethinus Murray) fruits [ 83 ] have been found to be caused by F. solani . Prior to this study, only incidences of watermelon fruit rot caused by F. citrullicola have been reported in Thailand [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

Identification and Characterization of Fusarium Species Causing Watermelon Fruit Rot in Northern Thailand

Nuangmek

Kumla

Khuna

et al. 2023

Plants

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Fruit rot caused by phytopathogenic fungi is one of the major diseases affecting watermelons (Citrullus lanatus) around the world, which can result in unmarketable fruits and significant economic losses. Fruit rot was observed on watermelons throughout the postharvest storage periods in Phayao Province, northern Thailand in 2022. For the present study, a total of ten fungal isolates were isolated from the rot lesions of watermelons. All obtained fungal isolates were then characterized in terms of their pathogenicity. The results indicated that only four fungal isolates caused rot disease with similar symptoms during the postharvest storage period. Based on their morphological characteristics, these four fungal isolates were identified as belonging to the genus Fusarium. Using multi-gene phylogenetic analyses with a combination of the translation elongation factor 1-alpha (tef-1), calmodulin (cam), and RNA polymerase second largest subunit (rpb2) genes, the fungal isolates were subsequently identified as Fusarium compactum and F. paranaense. Taken together, the results of this study indicate that F. compactum and F. paranaense cause fruit rot disease in watermelons. To the best of our knowledge, this is the first study to report F. compactum and F. paranaense as novel pathogens of watermelon fruit rot both in Thailand and elsewhere in the world.

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Section: Discussionmentioning

confidence: 99%

Identification and Characterization of Fusarium Species Causing Watermelon Fruit Rot in Northern Thailand

Nuangmek

Kumla

Khuna

et al. 2023

Plants

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“…Finding the specific gravity of a fruit requires its volume, which is usually measured by the slow and cumbersome water displacement method; having been subjected to this method, each durian must be dried to prevent fungal growth (Piasai et al, 2021). Alternative approaches have been devised to measure the volumes of agricultural products.…”

Section: Introductionmentioning

confidence: 99%

Durian volume determination using short-range coded-light three- dimensional scanner

2022

ANRES

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Importance of the work:The quality of a durian fruit can be inferred from its specific gravity, whose determination requires its volume. Traditionally, the volume of a durian is determined by the water displacement method; However, this is a slow process that runs the risk of fungal growth due to residual high humidity. Objectives: The present study evaluated the viability of three-dimensional (3D) scanning as an alternative approach to water displacement for the determination of the volume of durian fruit. Materials & Methods: Durian fruit samples at different maturity levels and harvested from two different growing areas were determined for volume using the traditional specific gravity method and compared with volumes measured using the 3D scanning method. Each scan took about 60 s. Results: The analysis showed that there was no significant (p > 0.05) difference between the traditional and proposed methods for durian fruit of different maturity levels. The average relative percentage difference was 1.06% (sample size of 116), which was less than that obtained from other reported studies that tested other fruits with reasonable axial symmetry. Main finding:The proposed alternative technique has potential for the continuous and automatic measurement of the volumes of durian fruit on a moving conveyor belt, as a part of the maturity determination process.

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Effect of Zinc Oxide Nanoparticles Against Phytophthora Spp. Causing Durian Diseases in Vitro

Keeratirawee,

Kongtragoul,

Pantakan

2024

SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings

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The efficiency of zinc oxide nanoparticles (ZnO-NPs) in inhibiting Phytophthora spp. growth in both durian fruits and stems is demonstrated. The size of ZnO-NPs used was in range of 25-50 nm in diameter. Diseased durian sample were collected from a durian orchard located in southern of Thailand. The pathogen of diseased durian was isolated for subsequent morphological identification. Three distinct strains of Phytophthora spp. (designated as PHY41, PHY45, PHY49) were successfully isolated and were found in colonies with rings and stellate pattern, ovoid, limoniform sporangium with semi-papillate or papillate, and formation chlamydospores. All isolates were exhibiting 100% pathogenicity on durian, as indicated by the disease incidence (DI). The concentration of ZnO-NPs played a crucial role in suppressing the growth of Phytophthora spp. in all isolates. Higher concentration of ZnO-NPs resulted in increased inhibition of growth. ZnO-NPs at the concentration of 2000 ?g/mL effectively suppressed the mycelial growth of all fungi isolates at 57.76-69.84%. Additionally, ZnO-NPs at the concentration of 500 ?g/mL completely inhibited the sporulation only in the PHY49 strains. Furthermore, ZnO-NPs concentration ranging from 1000-2000 ?g/mL resulted in completed inhibition in sporulation in all Phytophthora spp. isolates. The result demonstrated that ZnO-NPs at all concentrations effectively delayed the germination of Phytophthora spp.

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Postharvest fungicide dips to control fruit rot of ‘Monthong’ durian (Durio zibethinus)

Cited by 4 publications

References 18 publications

Identification and Characterization of Fusarium Species Causing Watermelon Fruit Rot in Northern Thailand

Identification and Characterization of Fusarium Species Causing Watermelon Fruit Rot in Northern Thailand

Durian volume determination using short-range coded-light three- dimensional scanner

Effect of Zinc Oxide Nanoparticles Against Phytophthora Spp. Causing Durian Diseases in Vitro

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